1.Reflections on Status Quo and Development Pathways of Traditional Chinese Medicine Technology Transfer in Context of Digital-intelligent Transformation
Jie ZHANG ; Jing XU ; Guangwei ZHENG ; Huayu ZHANG ; Chang LIU ; Xiaoxiao WEN ; Xishui PAN ; Bin WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):235-240
As a distinctive resource of Chinese civilization, traditional Chinese medicine (TCM) technology transfer faces significant opportunities under the background of digital and intelligent transformation, while also being constrained by unique challenges such as the complexity of its theoretical system, lengthy industrial chains, and multidimensional policy restrictions, resulting in a "high-value-high-threshold" paradox. At present, TCM technology transfer is deeply trapped in a "threefold reluctance" dilemma, i.e., unwillingness to transfer, inability to transfer, and lack of capacity to transfer. Specifically, the disconnection between scientific research evaluation systems and market demand leads to low conversion rates of research achievements, unclear ownership and compliance risks suppress innovation incentives, and the absence of professional services intensifies supply-demand mismatches. This article systematically analyzes the specific characteristics of TCM technology transfer and proposes a breakthrough pathway centered on full-chain digital and intelligent transformation. By integrating technologies such as intelligent sorting systems, blockchain-based traceability, and AI diagnostic models, the TCM ecosystem spanning "cultivation-production-service" can be reconstructed. In terms of standardization, promoting the progression from "experience-based data conversion" to "data standardization" and further to "intelligent standardization" is advocated to resolve quality control challenges. For example, a "three-no-one-full" certification system can strengthen quality trust. Policy coordination should focus on optimizing mechanisms for the transformation of scientific and technological achievements, while exploring intellectual property securitization and risk-sharing models to stimulate research momentum. In terms of internationalization, reliance on the Belt and Road Initiative platform to promote the export of geo-authentic medicinal material brands and standards is recommended to build a dual-driven model of "technology plus culture". Looking ahead, through the construction of national-level databases, the cultivation of interdisciplinary talent, and the mutual recognition of international standards, a new paradigm of "scientific intelligent manufacturing" can be formed, providing systematic solutions for the modernization of TCM and global health governance.
2.Insomnia and quality of life as chain mediators between negative life events and depression severity in adolescents with depressive disorders
Xu ZHANG ; Lewei LIU ; Jiawei WANG ; Feng GENG ; Daming MO ; Changhao CHEN ; Zhiwei LIU ; Xiangwang WEN ; Xiangfen LUO ; Huanzhong LIU
Acta Universitatis Medicinalis Anhui 2026;61(1):163-168
ObjectiveTo explore the relationship between negative life events and depression severity in adolescent patients with depressive disorder, as well as the chain mediating role of insomnia symptoms and quality of life. Methods374 outpatient patients and hospitalized patients with adolescent depressive disorders were enrolled. The Adolescent Life Event Scale (ASLEC), the Insomnia Severity Index (ISI), the World Health Organization Quality of Life Questionnaire Short Form (WHOQOL-BREF), and the Center for Epidemiology Depression Scale (CES-D) were used to evaluate the negative life event situation, insomnia symptoms, quality of life level and depression severity of the subjects, respectively. In addition, the PROCESS 4.0 macroprogram was used to analyze the chain mediating effect of insomnia symptoms and quality of life between negative life events and depression severity in patients with adolescent depressive disorder. ResultsThe results of correlation analysis showed that there was a significant correlation between negative life events and insomnia symptoms, quality of life, and depression severity (all P<0.05). In addition, the results of chain mediation showed that negative life events had a significant direct effect on depression severity, with an effect size of 0.12 (P<0.001). Insomnia symptoms and quality of life played a mediating role in the relationship between negative life events and depression severity in patients with adolescent depressive disorders, with indirect effect sizes of 0.062 (95%CI: 0.040-0.087) and 0.091 (95%CI: 0.059-0.123), respectively. It could also play a chain mediation role, and the effect size was 0.039 (95%CI: 0.024-0.057). ConclusionNegative life events experienced by patients with adolescent depressive disorder not only directly affect the severity of depressive symptoms, but may also indirectly exacerbate depression through insomnia symptoms and quality of life.
3.Development and performance testing of an automatic measurement system for gross α and β in water bodies
Xia WANG ; Kai GU ; Fuping WEN ; Xutao XU
Chinese Journal of Radiological Health 2026;35(1):29-35
Objective To develop an automated system for the determination of gross α and gross β activity concentrations in water, and to support the rapid and automated monitoring of environmental water bodies. Methods Based on the thick source method, microwave evaporation-ashing was used to replace conventional electric hotplate heating. A grinder and a sample-spreading device were designed and operated via a robotic arm, achieving fully automated pretreatment, sample preparation, and measurement. Results Spike recovery tests demonstrated that the recovery rates were 95.7%-102.5% for gross α and 97.2%-108.1% for gross β. The relative standard deviations were 4.1%-7.8% for gross α and 5.9%-7.7% for gross β. Compared with manual laboratory methods, the average relative errors were 2.17%-6.25% for gross α and 4.17%-6.90% for gross β. The sample preparation time was reduced from an average of 72 hours to less than 5 hours, representing an efficiency improvement of over 90%. Conclusion The developed system enables rapid, accurate, and fully automated monitoring of gross α/β radioactivity, making it suitable for online monitoring of environmental water bodies. It can provide timely data on the radiological indicators of water bodies for environmental protection and water resource management authorities.
4.Effects of Huanglian Jiedutang on Neutrophil Infiltration in Brain of MCAO Mice via Regulation of Chemokine Expression in Exosomes
Haojia ZHANG ; Kai WANG ; Zijin SUN ; Chunyu WANG ; Wei SHAO ; Kunjing LIU ; Liyang DONG ; Dan CHEN ; Wenxiu XU ; Chuanzun WANG ; Wen WANG ; Changxiang LI ; Xueqian WANG ; Fafeng CHENG ; Qingguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):42-53
ObjectiveTo investigate whether Huanglian Jiedutang can inhibit neutrophil infiltration in the brains of middle cerebral artery occlusion (MCAO) mice by regulating the expression of neutrophil-related chemokines in exosomes, thereby achieving therapeutic effects. MethodsA total of 130 male specific pathogen-free (SPF) C57BL/6J mice were randomly divided into four groups: Sham-operated group, MCAO model group, Huanglian Jiedutang group (6 g·kg-1), and Ginaton group (21.6 mg·kg-1), with 10 mice in the Ginaton group and 40 mice in each of the remaining three groups. Mice in the Huanglian Jiedutang group and the Ginaton group were administered the corresponding drugs by oral gavage once daily at a volume of 0.15 mL·(10 g)-1 for 7 consecutive days, while the sham-operated and model groups received an equal volume of saline via the same route. After 7 days, MCAO surgery was performed. The distal and proximal ends of the right common carotid artery (CCA) were ligated, a small incision was made between the two ligatures, and a silicone rubber-coated monofilament with a rounded tip was inserted into the lumen to occlude the CCA. The filament was left in place for 1 h to establish a focal cerebral ischemia model. At 24 h after modeling, mice were evaluated. Neurological function was assessed using the Longa score. Cerebral infarct volume was measured by 2,3,5-triphenyltetrazolium chloride (TTC) staining. Cerebral blood flow was observed by laser speckle imaging. Hematoxylin and eosin (HE) staining and Nissl staining were used to observe pathological changes in brain tissues. Exosomes were isolated from mouse plasma and brain tissues by ultracentrifugation and molecular size exclusion and identified by electron microscopy, particle size analysis, and protein blotting. Long-chain RNA libraries of exosomes were constructed and sequenced. Real-time quantitative reverse transcription polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of inflammatory factors and neutrophil-related chemokines in exosomes from plasma and brain tissues of each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the protein expression of inflammatory factors and neutrophil-related chemokines in exosomes from brain tissues of each group. Immunohistochemistry was used to detect the expression of the neutrophil-specific protein myeloperoxidase (MPO) in the brains of mice in each group. ResultsCompared with the sham-operated group, the model group showed decreased neurological function scores (P<0.01), obvious cerebral infarction (P<0.01), reduced cerebral blood flow (P<0.01), neuronal necrosis in the brain, and decreased numbers of Nissl bodies (P<0.01). The mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were significantly increased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were increased (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were elevated (P<0.01). Compared with the model group, the Huanglian Jiedutang group and the Ginaton group showed increased neurological function scores (P<0.05), reduced cerebral infarct volume (P<0.01), restored cerebral blood flow (P<0.01), reduced necrotic cells in the brain, and increased numbers of Nissl bodies (P<0.01). In the Huanglian Jiedutang group, the mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were decreased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were reduced (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were decreased (P<0.01). ConclusionHuanglian Jiedutang can effectively regulate the expression of neutrophil-related chemokines in exosomes from plasma and brain tissues of MCAO mice, thereby reducing neutrophil infiltration in the brain and achieving therapeutic effects.
5.Regulatory Role of Huanglian Jiedutang in Microglial Metabolic Reprogramming to Suppress Neuroinflammatory Damage Based on Single-cell Transcriptomics
Zijin SUN ; Haojia ZHANG ; Kai WANG ; Linjing SONG ; Chuanzun WANG ; Wen WANG ; Jing JI ; Zhaoyi WANG ; Wenxiu XU ; Qingguo WANG ; Xueqian WANG ; Fafeng CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):64-73
ObjectiveTo investigate the characteristics of metabolic reprogramming during cerebral ischemia-reperfusion injury using single-cell transcriptome sequencing, analyze the heterogeneity of microglial populations, and evaluate the interventional effects of Huanglian Jiedutang on metabolic abnormalities and neuroinflammation. MethodsA transient middle cerebral artery occlusion (tMCAO) model was used to establish ischemic stroke in mice. Local cerebral blood flow changes were monitored by laser speckle imaging. Neurological impairment was evaluated using the Zea-Longa score, and histopathological damage in brain tissue was observed by HE and Nissl staining. Animals were divided into a sham group, model group, Huanglian Jiedutang group, and Ginkgo biloba extract (GBE) group. After 1 week of acclimatization, intragastric administration was initiated. The sham and model groups received normal saline, the Huanglian Jiedutang group was administered 1.82 g·kg-1, and the GBE group was administered 0.432 g·kg-1 after preparation as a 2.16 mg/mL solution. All groups were treated for 5 consecutive days (0.2 mL/10 g/day), and the tMCAO model was established on day 6 after the final administration. At the molecular level, single-cell RNA sequencing was performed on ischemic hemisphere tissue. Non-negative matrix factorization (NMF) was used to cluster microglial subpopulations, combined with differential expression analysis, metabolic reprogramming assessment, and inflammatory factor correlation analysis to elucidate their functional characteristics in ischemia-reperfusion injury. Transcription factor enrichment analysis was further conducted to identify key regulatory nodes. Finally, PCR was used to detect mRNA expression changes of relevant genes to validate the single-cell sequencing results. ResultsCompared with the sham group, the model group showed increased neurological function scores (P<0.01), decreased blood flow levels (P<0.01), disordered cortical structure, increased cytoplasmic vacuolization, and increased Nissl bodies. Compared with the model group, the Huanglian Jiedutang and GBE groups showed decreased neurological function scores (P<0.01), increased blood flow levels (P<0.01), alleviated cortical structural disorder, reduced cytoplasmic vacuolization, and decreased Nissl bodies. Single-cell analysis showed that microglia could be divided into five subpopulations. Among them, clusters 3 and 5 exhibited significant pro-inflammatory phenotypes, with marked activation of hypoxia and NF-κB signaling pathways, and were identified as pro-inflammatory subpopulations. Clusters 1 and 2 were enriched in Wnt/β-catenin and transforming growth factor(TGF)-β signaling pathways and exhibited prominent anti-inflammatory and reparative characteristics. Meanwhile, glycolysis-related genes, such as HK2, PFKP, and LDHA, were significantly upregulated in the pro-inflammatory subpopulations. Correlation analysis showed that the expression levels of inflammatory molecules were positively correlated with glycolysis-related gene expression levels, whereas the expression levels of reparative and anti-inflammatory molecules were negatively correlated with glycolysis-related gene expression levels, indicating that microglia rely on the glycolytic pathway for energy acquisition under ischemic conditions. Further single-cell transcriptome analysis revealed that Huanglian Jiedutang effectively downregulated key genes driving metabolic reprogramming (such as HK2, PFKP, and LDHA), significantly reduced the proportion of microglial subpopulations accompanied by glycolytic reprogramming, and inhibited their transformation toward a damage phenotype, thereby reducing inflammatory injury. Meanwhile, compared with the sham group, the mRNA expression levels of interleukin (IL)-1β, IL-6, tumor necrosis factor(TNF)-α, CCL2, CXCL2, and CSF3 were significantly upregulated (P<0.01) in the model group, whereas the mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3, were significantly downregulated (P<0.01). In contrast, compared with the model group, the Huanglian Jiedutang and GBE groups showed significantly decreased mRNA expression levels of IL-1β, IL-6, TNF-α, CCL2, CXCL2, and CSF3 (P<0.01), and significantly increased mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3 (P<0.01). ConclusionHuanglian Jiedutang exerts neuroprotective effects by regulating the metabolic reprogramming state of microglia and modulating their inflammatory levels, thereby inhibiting neuroinflammatory injury.
6.Effects of Huanglian Jiedutang on Neutrophil Infiltration in Brain of MCAO Mice via Regulation of Chemokine Expression in Exosomes
Haojia ZHANG ; Kai WANG ; Zijin SUN ; Chunyu WANG ; Wei SHAO ; Kunjing LIU ; Liyang DONG ; Dan CHEN ; Wenxiu XU ; Chuanzun WANG ; Wen WANG ; Changxiang LI ; Xueqian WANG ; Fafeng CHENG ; Qingguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):42-53
ObjectiveTo investigate whether Huanglian Jiedutang can inhibit neutrophil infiltration in the brains of middle cerebral artery occlusion (MCAO) mice by regulating the expression of neutrophil-related chemokines in exosomes, thereby achieving therapeutic effects. MethodsA total of 130 male specific pathogen-free (SPF) C57BL/6J mice were randomly divided into four groups: Sham-operated group, MCAO model group, Huanglian Jiedutang group (6 g·kg-1), and Ginaton group (21.6 mg·kg-1), with 10 mice in the Ginaton group and 40 mice in each of the remaining three groups. Mice in the Huanglian Jiedutang group and the Ginaton group were administered the corresponding drugs by oral gavage once daily at a volume of 0.15 mL·(10 g)-1 for 7 consecutive days, while the sham-operated and model groups received an equal volume of saline via the same route. After 7 days, MCAO surgery was performed. The distal and proximal ends of the right common carotid artery (CCA) were ligated, a small incision was made between the two ligatures, and a silicone rubber-coated monofilament with a rounded tip was inserted into the lumen to occlude the CCA. The filament was left in place for 1 h to establish a focal cerebral ischemia model. At 24 h after modeling, mice were evaluated. Neurological function was assessed using the Longa score. Cerebral infarct volume was measured by 2,3,5-triphenyltetrazolium chloride (TTC) staining. Cerebral blood flow was observed by laser speckle imaging. Hematoxylin and eosin (HE) staining and Nissl staining were used to observe pathological changes in brain tissues. Exosomes were isolated from mouse plasma and brain tissues by ultracentrifugation and molecular size exclusion and identified by electron microscopy, particle size analysis, and protein blotting. Long-chain RNA libraries of exosomes were constructed and sequenced. Real-time quantitative reverse transcription polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of inflammatory factors and neutrophil-related chemokines in exosomes from plasma and brain tissues of each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the protein expression of inflammatory factors and neutrophil-related chemokines in exosomes from brain tissues of each group. Immunohistochemistry was used to detect the expression of the neutrophil-specific protein myeloperoxidase (MPO) in the brains of mice in each group. ResultsCompared with the sham-operated group, the model group showed decreased neurological function scores (P<0.01), obvious cerebral infarction (P<0.01), reduced cerebral blood flow (P<0.01), neuronal necrosis in the brain, and decreased numbers of Nissl bodies (P<0.01). The mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were significantly increased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were increased (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were elevated (P<0.01). Compared with the model group, the Huanglian Jiedutang group and the Ginaton group showed increased neurological function scores (P<0.05), reduced cerebral infarct volume (P<0.01), restored cerebral blood flow (P<0.01), reduced necrotic cells in the brain, and increased numbers of Nissl bodies (P<0.01). In the Huanglian Jiedutang group, the mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were decreased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were reduced (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were decreased (P<0.01). ConclusionHuanglian Jiedutang can effectively regulate the expression of neutrophil-related chemokines in exosomes from plasma and brain tissues of MCAO mice, thereby reducing neutrophil infiltration in the brain and achieving therapeutic effects.
7.Regulatory Role of Huanglian Jiedutang in Microglial Metabolic Reprogramming to Suppress Neuroinflammatory Damage Based on Single-cell Transcriptomics
Zijin SUN ; Haojia ZHANG ; Kai WANG ; Linjing SONG ; Chuanzun WANG ; Wen WANG ; Jing JI ; Zhaoyi WANG ; Wenxiu XU ; Qingguo WANG ; Xueqian WANG ; Fafeng CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):64-73
ObjectiveTo investigate the characteristics of metabolic reprogramming during cerebral ischemia-reperfusion injury using single-cell transcriptome sequencing, analyze the heterogeneity of microglial populations, and evaluate the interventional effects of Huanglian Jiedutang on metabolic abnormalities and neuroinflammation. MethodsA transient middle cerebral artery occlusion (tMCAO) model was used to establish ischemic stroke in mice. Local cerebral blood flow changes were monitored by laser speckle imaging. Neurological impairment was evaluated using the Zea-Longa score, and histopathological damage in brain tissue was observed by HE and Nissl staining. Animals were divided into a sham group, model group, Huanglian Jiedutang group, and Ginkgo biloba extract (GBE) group. After 1 week of acclimatization, intragastric administration was initiated. The sham and model groups received normal saline, the Huanglian Jiedutang group was administered 1.82 g·kg-1, and the GBE group was administered 0.432 g·kg-1 after preparation as a 2.16 mg/mL solution. All groups were treated for 5 consecutive days (0.2 mL/10 g/day), and the tMCAO model was established on day 6 after the final administration. At the molecular level, single-cell RNA sequencing was performed on ischemic hemisphere tissue. Non-negative matrix factorization (NMF) was used to cluster microglial subpopulations, combined with differential expression analysis, metabolic reprogramming assessment, and inflammatory factor correlation analysis to elucidate their functional characteristics in ischemia-reperfusion injury. Transcription factor enrichment analysis was further conducted to identify key regulatory nodes. Finally, PCR was used to detect mRNA expression changes of relevant genes to validate the single-cell sequencing results. ResultsCompared with the sham group, the model group showed increased neurological function scores (P<0.01), decreased blood flow levels (P<0.01), disordered cortical structure, increased cytoplasmic vacuolization, and increased Nissl bodies. Compared with the model group, the Huanglian Jiedutang and GBE groups showed decreased neurological function scores (P<0.01), increased blood flow levels (P<0.01), alleviated cortical structural disorder, reduced cytoplasmic vacuolization, and decreased Nissl bodies. Single-cell analysis showed that microglia could be divided into five subpopulations. Among them, clusters 3 and 5 exhibited significant pro-inflammatory phenotypes, with marked activation of hypoxia and NF-κB signaling pathways, and were identified as pro-inflammatory subpopulations. Clusters 1 and 2 were enriched in Wnt/β-catenin and transforming growth factor(TGF)-β signaling pathways and exhibited prominent anti-inflammatory and reparative characteristics. Meanwhile, glycolysis-related genes, such as HK2, PFKP, and LDHA, were significantly upregulated in the pro-inflammatory subpopulations. Correlation analysis showed that the expression levels of inflammatory molecules were positively correlated with glycolysis-related gene expression levels, whereas the expression levels of reparative and anti-inflammatory molecules were negatively correlated with glycolysis-related gene expression levels, indicating that microglia rely on the glycolytic pathway for energy acquisition under ischemic conditions. Further single-cell transcriptome analysis revealed that Huanglian Jiedutang effectively downregulated key genes driving metabolic reprogramming (such as HK2, PFKP, and LDHA), significantly reduced the proportion of microglial subpopulations accompanied by glycolytic reprogramming, and inhibited their transformation toward a damage phenotype, thereby reducing inflammatory injury. Meanwhile, compared with the sham group, the mRNA expression levels of interleukin (IL)-1β, IL-6, tumor necrosis factor(TNF)-α, CCL2, CXCL2, and CSF3 were significantly upregulated (P<0.01) in the model group, whereas the mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3, were significantly downregulated (P<0.01). In contrast, compared with the model group, the Huanglian Jiedutang and GBE groups showed significantly decreased mRNA expression levels of IL-1β, IL-6, TNF-α, CCL2, CXCL2, and CSF3 (P<0.01), and significantly increased mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3 (P<0.01). ConclusionHuanglian Jiedutang exerts neuroprotective effects by regulating the metabolic reprogramming state of microglia and modulating their inflammatory levels, thereby inhibiting neuroinflammatory injury.
8.Comparison of bioelectrical impedance analysis and dual energy X ray absorptiometry in measuring body composition among Tibetan children and adolescents
Chinese Journal of School Health 2026;47(4):569-573
Objective:
To compare the consistency between bioelectrical impedance analysis (BIA) and dual energy X ray absorptiometry (DXA) in measuring body composition among Tibetan children and adolescents and to explore the applicability of BIA in plateau region, so as to provide scientific and convenient body composition measurement support among children and adolescents.
Methods:
From May to June, 2022, a total of 344 Tibetan children and adolescents aged 6-17 years were selected from Golmud Municipal National Middle School and Changjiangyuan Nationality Primary School in Qinghai Province by cluster sampling method, and their fat mass, fat mass percentage and lean mass were measured by DXA and BIA. The consistency and correlation between the two methods were assessed by using the Wilcoxon rank-sum test, Spearman correlation analysis, intraclass correlation coefficient (ICC), and Bland-Altman analysis.
Results:
DXA measured fat mass and fat mass percentage were significantly higher than those obtained by BIA (6-12 years old: Z =9.91, 11.28; 13-17 years old: Z =9.02, 10.21), while lean mass and lean mass percentage were significantly lower than BIA results (6-12 years old: Z =-11.60, -11.30; 13-17 years old: Z =-10.77, -10.36) (all P < 0.05 ). The two methods showed strong correlations in fat mass and lean mass (all r >0.80, all ICC >0.90), but exhibited poor agreement in fat mass percentage and lean mass percentage (6-12 years old: Lin s CCC =0.64, 0.41; 13-17 years old: Lin s CCC = 0.79 , 0.35). Bland-Altman analysis showed that the difference between the two methods was negatively correlated with the average value in FM%(6-12 years old: r =-0.75, 13-17 years old: r =-0.79, both P <0.01).
Conclusion
BIA and DXA show high consistency in measuring body fat mass and lean body mass in Tibetan children and adolescents, although some bias is still present in certain individuals.
9.A new classification of atlas fracture based on computed tomography: reliability, reproducibility, and preliminary clinical significance
Yun-lin CHEN ; Wei-yu JIANG ; Wen-jie LU ; Xu-dong HU ; Yang WANG ; Wei-hu MA
Asian Spine Journal 2025;19(1):3-9
Methods:
Seventy-five patients with atlas fracture were included from January 2015 to December 2020. Based on the anatomy of the fracture line, atlas fractures were divided into three types. Each type was divided into two subtypes according to the fracture displacement. Unweighted Cohen kappa coefficients were applied to evaluate the reliability and reproducibility.
Results:
According to the new classification, 17 cases of type A1, 12 of type A2, seven of type B1, 13 of type B2, 12 of type C1, and 14 of type C2 were identified. The K-values of the interobserver and intraobserver reliability were 0.846 and 0.912, respectively, for the new classification. The K-values of interobserver reliability for types A, B, and C were 0.843, 0.799, and 0.898, respectively. The K-values of intraobserver reliability for types A, B, and C were 0.888, 0.910, and 0.935, respectively. The mean K-values of the interobserver and intraobserver reliability for subtypes were 0.687 and 0.829, respectively.
Conclusions
The new classification of atlas fractures can cover nearly all atlas fractures. This system is the first to evaluate the severity of fractures based on the C1 articular facet and fracture displacement and strengthen the anatomy ring of the atlas. It is concise, easy to remember, reliable, and reproducible.
10.Clinical features and sepsis-related factors in 159 patients with necrotizing soft tissue infection.
Hongmin LUO ; Xiaoyan WANG ; Xu MU ; Zeyang YAO ; Chuanwei SUN ; Lianghua MA ; Shaoyi ZHENG ; Huining BIAN ; Wen LAI
Chinese Critical Care Medicine 2025;37(9):817-821
OBJECTIVE:
To explore the clinical features of patients with necrotizing soft tissue infection (NSTI) and the related factors for sepsis, so as to provide a basis for early intervention and improvement of patients' prognosis.
METHODS:
A retrospective case series study was conducted to analyze the clinical data of NSTI patients admitted to the department of burns and wound repair surgery of Guangdong Provincial People's Hospital from October 2021 to December 2024. Demographic information, underlying diseases, infection characteristics, laboratory test results and etiological findings at admission, treatment status, occurrence of complications (including sepsis) and prognosis were collected. Univariate and multivariate Logistic regression analyses were used to identify the associated factors for sepsis in NSTI patients. Receiver operator characteristic curves (ROC curves) were plotted to evaluate the predictive value of individual and combined factors for sepsis.
RESULTS:
A total of 159 NSTI patients were enrolled, mainly middle-aged and elderly males. Most patients had comorbidities, including diabetes mellitus (110 cases, 69.2%) and hypertension (67 cases, 42.1%). The main infection site was the lower extremities (104 cases, 65.4%). Common symptoms included redness (96 cases, 60.4%), swelling (129 cases, 81.1%), local heat (60 cases, 37.7%), pain (100 cases, 62.9%), and skin ulceration or necrosis (9 cases, 5.7%). Imaging findings included soft tissue swelling (66 cases, 57.9%), gas accumulation (41 cases, 36.0%), and abnormal signal/density shadows (50 cases, 43.9%). Staphylococcus aureus was the main pathogenic bacterium [12.0% (31/259)], and drug-resistant Escherichia coli had the highest detection rate among drug-resistant bacteria [35.1% (13/37)]. Regarding debridement and repair, most patients (80 cases, 50.3%) underwent debridement ≥ 72 hours after admission, while only 10.1% (16 cases) received debridement within 6 hours. Most patients underwent multiple debridements, with 2 times of debridements being the most common (68 cases, 42.8%), and the maximum times of debridements reached 6. The largest number of patients received secondary suture (44 cases, 27.7%). In terms of complications, sepsis was the most common (66 cases, 41.51%), followed by acute kidney injury, respiratory failure requiring mechanical ventilation, and multiple organ dysfunction syndrome (MODS), while disseminated intravascular coagulation (DIC) was the least common. During the follow-up period, 9 patients (5.66%) were readmitted within 90 days, and 11 patients died, with a mortality rate of 6.92%. Univariate analysis showed that diabetes, coronary heart disease, gout, body temperature, heart rate, C-reactive protein, platelet count, total bilirubin, albumin, creatinine, out-of-hospital treatment, and out-of-hospital use of antimicrobial agents were significantly associated with sepsis in NSTI patients (all P < 0.05). Multivariate Logistic regression analysis showed that coronary heart disease [odds ratio (OR) = 30.085, 95% confidence interval (95%CI) was 2.105-956.935], C-reactive protein (OR = 1.026, 95%CI was 1.009-1.054), and total bilirubin (OR = 1.436, 95%CI was 1.188-1.948) were independent associated factors for sepsis in NSTI patients (all P < 0.05). ROC curve analysis revealed that the combination of the three predictors yielded the highest AUC for predicting sepsis in NSTI patients compared to any individual predictor [area under the curve (AUC) = 0.799 (95%CI was 0.721-0.878)].
CONCLUSIONS
The clinical features of NSTI patients show certain regularity. Coronary heart disease, C-reactive protein, and total bilirubin are independent associated factors for sepsis in NSTI patients.
Humans
;
Retrospective Studies
;
Male
;
Sepsis
;
Soft Tissue Infections/microbiology*
;
Female
;
Middle Aged
;
Aged
;
Adult
;
Prognosis
;
Risk Factors
;
Necrosis
;
Logistic Models
;
Fasciitis, Necrotizing


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